A very simple way to sterlize water has been developed by us. www.nariphaltan.org/watersterlization.pdf
Cheers. On Tue, Nov 12, 2013 at 6:03 AM, Robert Taylor <[email protected]> wrote: > A niggling point: SODIS is NOT pasteurization. As far as I understand, > it works largely by ultraviolet irradiation, along with a degree of > temperature elevation well short of pasteurization temperatures. According > to information (promoting pasteurization) that I have read online, it is > less effective than pasteurization, which can also be achieved without fuel > by using solar heating. However, SODIS is clearly far better than nothing, > and it can be implemented straight away by the direct use of easily > available equipment (plastic bottles and a bit of cloth). > > Robert Taylor > > > > There's also the SODIS method for pasteurizing drinking water. If you have > 6 hours of sunlight, you can use a simple fabric filter to get water clear > enough and use a plastic bottle and some reflective metal to pasteurize it: > http://www.sodis.ch/methode/anwendung/index_EN > > > > Keep in mind that the pasteurization temperature of water is lower than > the boiling temperature. If the initial water is clean enough, a lot of > fuel can be saved just by bringing it up to the right temperature. Here's > a link to a chart for the temps at which most common pathogens can be > killed: > > http://solarcooking.wikia.com/wiki/Water_pasteurization > > > > Kind regards, > > Erin Rasmussen > > Stoves Discussion List > > [email protected] > > > _______________________________________________ > Stoves mailing list > > to Send a Message to the list, use the email address > [email protected] > > to UNSUBSCRIBE or Change your List Settings use the web page > > http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org > > for more Biomass Cooking Stoves, News and Information see our web site: > http://stoves.bioenergylists.org/ > > > -- Nimbkar Agricultural Research Institute (NARI) Tambmal, Phaltan-Lonand Road P.O.Box 44 Phaltan-415523, Maharashtra, India Ph:91-2166-222396/220945/222842 e-mail:[email protected] [email protected] http://www.nariphaltan.org
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